ActronAir Cascade Series 2 User manual

Brand: ActronAir

Model: Cascade Series 2

Category: Split-system air conditioners

Type: User manual

Owner's Manual

That’s better. That’s Actron.

Cascade Series 2

Four Way Cassette

IMPORTANT NOTE:

Please read this manual carefully before installing or operating your air conditioning unit. Make sure to save this manual for

future reference.

CAUTION:

The system is charged with ﬂ ammable refrigerant, safety checks are necessary to ensure that the

risk of ignition is minimised.

Model Numbers

CRC-100CS / CRE-100CS

URC-125CS / CRE-125CS

URC-140CS / CRE-140CS

Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

Owner's Manual Four-Way Cassette

Table of Contents

. General Information ............................................................................................................. 

. Safety Instructions ............................................................................................................... 

. Unit Parts ............................................................................................................................. 

. Operating Conditions ........................................................................................................... 

. Features ............................................................................................................................... 

. Care and Maintenance .......................................................................................................... 

. Troubleshooting ................................................................................................................ 

. Display / Error Codes .......................................................................................................... 

. Maintenance ...................................................................................................................... 

. Maintenance Frequency Checklist ...................................................................................... 

READ SAFETY PRECAUTIONS

Incorrect system operations due to ignoring instructions can cause serious damage or injury. The

seriousness of potential damage or injuries is classiﬁed as either a WARNING or CAUTION.

Failure to observe a warning may result in death or serious injury.

CAUTION

Failure to observe a caution may result in injury or equipment damage.

This manual is a controlled document which contains conﬁdential and proprietary information.

Distribution, modiﬁcation, copying and/or reproduction are prohibited without written consent from ActronAir

Product design and speciﬁcations are subject to change without prior notice for product improvement.

Drawings are for illustration purposes only and may vary depending on the model purchased.

WARNING

Owner's Manual Four-Way Cassette

Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

. General Information

CONGRATULATIONS on your purchase of an ActronAir air conditioning unit! This unit has been designed and engineered

to provide optimum air conditioning and to achieve maximum energy eﬃciency.

Your air conditioning system has been manufactured from the highest quality materials. Numerous “in house” and

“external” inspections and test procedures were conducted to your air conditioning unit to ensure satisfactory operation.

This guide provides operation instructions speciﬁc to your split indoor unit. Read this manual thoroughly to ensure safe

operation of your air conditioning system.

. Safety Instructions

•Only licensed HVAC technicians* should service this air conditioning equipment. Improper service or alteration by

an unqualiﬁed technician could result in signiﬁcant and major damage to the product or property which may render

your warranty null and void. Such unqualiﬁed service could also lead to severe physical injury or death. Follow all safety

instructions in this literature and all warning labels that are attached to the equipment.

•Prevailing WH&S regulations must be observed and will take precedence to the safety instructions contained on this

manual. Safe work practices and environment must be the paramount importance in the performance of all the service

procedures.

•This appliance is not intended for use by young children or inﬁrm persons unless they have been adequately supervised

by a responsible person to ensure that they can use the appliance safely. Young children should be supervised to ensure

that they do not play with the appliance.

*Qualiﬁcations required will be appropriate Electrical, Refrigeration and Refrigerant Handling License and Training

dependent on local State/Territory regulations.

DANGER

Hazardous Voltage - Risk of Electrocution.

Turn Oﬀ the power from main isolator before proceeding with any service and maintenance work of the unit. Observe proper

LOCK-OUT/TAG-OUT (LOTO) procedures for electrical appliances in order to prevent accidental switching-on of the power

supply. Extreme care and caution must be observed should there be a need to work on live circuit.

WARNING

• If any abnormal situation arises (like burning smell), turn of the power supply and call your HVAC technician for instructions

to avoid electric shock, ﬁre or injury.

• DO NOT let the indoor unit or the controller get wet. It may cause electric shock or ﬁre.

• DO NOT insert ﬁngers, rods or other objects into the air inlet or outlet. This may cause injury, since the fan may be rotating

at high speeds.

• DO NOT use a ﬂammable spray such as hair spray, lacquer or paint near the unit. This may cause ﬁre or combustion.

Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

Owner's Manual Four-Way Cassette

CAUTION

• DO NOT inspect the unit by yourself. Ask a qualiﬁ ed HVAC technician to perform the inspection.

• To prevent product deterioration, do not use the air conditioner for preservation purposes (storage of food, plants, animals,

works of art, etc.).

• DO NOT touch the evaporator coils inside the indoor unit. The evaporator coils are sharp and may cause injury.

• DO NOT place items that might be aﬀ ected by moisture damage under the indoor unit. Condensation can occur at a relative

humidity of 80%.

• DO NOT expose heat-producing appliances to cold air or place them under the indoor unit. This may cause incomplete

combustion or deformation of the unit due to the heat.

• If the air conditioner is used together with other heating devices, thoroughly ventilate the room to avoid oxygen deﬁ ciency.

• DO NOT climb onto or place objects on top of the outdoor unit.

• DO NOT operate the air conditioner when using fumigant insecticides. The chemicals may become layered with the unit and

endanger those who are hypersensitive to chemicals.

• DO NOT let children play with the air conditioner.

• DO NOT attempt to manually adjust or bend louvre blades. Doing so may damage louvre blades, or if pushed closed may cause

excess condensation resulting in the failure of the air conditioning.

DANGER

• DO NOT operate the air conditioner in a wet room (e.g. bathroom or laundry room) nor with wet hands. This can cause electrical

shock and cause the product to deteriorate.

WARNING

This air-conditioning unit contains R-32 refrigerant (CLASS A2L) which is mildly ﬂ ammable.

NOTE

• Service, maintenance, repairs and decommissioning of this unit must be performed by a licensed HVAC technician; qualiﬁ ed

to handle R-32 refrigerant.

• R-32 refrigerant is odourless, if the refrigerant gas comes into contact with ﬁ re, it may emit a poisonous gas.

• Do not continuously operate open ﬂ ames and ignition sources in the room.

. Unit Parts

Operation

indicator

Timer

indicator

PRE-DEF indicator

(pre-heating/defrost)

Alarm indicator

Air inlet

Air outlet

Louver

When wireless control

feature is activated

LED display

Display panel

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Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

. Operating Conditions

Operating Temperature

Optimal performance for the COOL, HEAT, and DRY modes can be achieved in the following temperature ranges. When

your air conditioner is used outside of these ranges, certain safety protection features will activate and cause the unit to

perform less than optimally.

COOL Mode HEAT Mode DRY Mode

Room Temperature 16°C to 32°C 0°C to 30°C 10°C to 32°C

Outdoor Temperature 0°C to 50°C -20°C to 24°C 0°C to 50°C

NOTE

Room relative humidity should be less than 80%. If the air conditioner operates in room with relative humidity greater than

80%, the surface of the air conditioner may attract condensation. To avoid condenstion on louvers, please set the vertical air

ﬂow louvre to its maximum angle and set HIGH fan mode.

To further optimize the performance of your unit, do the following:

•Keep doors and windows closed.

•Limit energy usage by using TIMER ON and TIMER OFF functions.

•Do not block air inlets or outlets.

•Regularly inspect and clean air ﬁlters.

. Features

Compressor Protection

•The compressor cannot restart for 3 minutes after it stops.

Hot Start

•The unit is designed to minimise cold air during HEAT mode, when the indoor heat exchanger is in one of the following

conditions and the set temperature has not been reached.

a. When heating has just started.

b. When the system is in defrost.

c. Low temperature heating.

Defrosting

•Frosting may occur on the outdoor unit during a heat cycle when outdoor temperature is low and humidity is high

resulting in lower heating eﬃciency.

•Under these conditions, the air conditioner will stop heating operations and start defrosting automatically.

•The defrost period may vary from 4 to 10 minutes, depending on the outdoor temperature and the amount of frost

buildup on the outdoor unit.

•The indoor and outdoor fan stop running when the system is in defrost.

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Auto-Restart

The system has an auto restart function. If a power failure occurs, the system will immediately stop. When power returns,

the unit will restart automatically in its last programmed setting once power is resotered.

Louvre Angle Memory Function

When the unit restarts after a power failure, the angle of the horizontal louvres will automatically return to the previous

position. The angle of the horizontal louvre should not be set to small opening (or near close possition) as condensation

may form and drip from the machine.

NOTE

Lightning or any electronic interference nearby may cause the unit to malfunction. If this happens, reset the power mains

(isolator). Press the ON/OFF button on the wired controller to restart operation.

Optimal Operation

To achieve optimal performance, please note the following:

•Adjust the direction of the air ﬂow so that it is not blowing directly onto people.

•Adjust the temperature to achieve the highest possible level of comfort. DO NOT adjust the unit to excessive

temperature levels.

•While cooling, close the blinds or curtains to avoid direct sunlight.

•Doors and windows should be kept closed to keep cool or warm air in the room.

•Set an ON/OFF TIMER and use SLEEP/ECONOMY feature.

•Do not place any object near the air inlet or air outlet, as the eﬃciency of the air conditioner may be reduced and the

air conditioner may stop running.

•When a remote control is used, remove the batteries if you don’t plan to use the unit for a long time.

•Clean the air ﬁlter periodically, otherwise cooling or heating performance may be reduced.

. Care and Maintenance

NOTES

Apart from Cleaning the Air Filter, all other general maintenance and care of systems should be undertaken by a licensed

technician.

Service, maintenance, repairs and decommissioning of this unit must be performed by a licensed HVAC technician; qualiﬁed

to handle R-32 refrigerant.

Maintenance Procedures

This section describes the procedures that must be performed as a part of normal maintenance program. Regular

servicing of equipment by a licensed technician is highly recommended. Regular servicing of your unit helps in

maintaining its optimum performance and reliability. The checklist and service periods provided in this manual are

guides only, as some sites may require more frequent servicing. Always disconnect electrical power to the unit before

performing these procedures. It is always a safe practice to observe all safety warnings and cautions when conducting

maintenance tasks.

WARNING

Hazardous Voltage !

Always make sure that all power supply, including remote controls, are disconnected before performing maintenance.

Observe proper LOCK-OUT/TAG-OUT procedures to ensure that power cannot be inadvertently energised. Failure to

disconnect power before maintenance procedures can result in serious injury and/or death.

Owner's Manual Four-Way Cassette

Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

DANGER

Live Electrical Connections!

It may be necessary to work with live electrical components on certain maintenance tasks. Only licensed electricians and

qualiﬁed technicians are allowed to perform these tasks.

Beware of Rotating Fan Blades!

Always make sure that all power supply, to the Outdoor Fans are turn Oﬀ and isolated.

Observe WH&S safety procedures, do not wear loose clothing and any jewellery when working near the fans.

Wear PPE whenever performing any maintenance procedures.

Observe all necessary procedures when working in a conﬁned space.

Annual Maintenance Checklists

•Perform general maintenance inspections.

•Perform scheduled start-up checks.

•Leak test refrigerant circuits.

•Inspect contacts of all contactors and relays. Replace all worn contacts as required.

•Inspect, clean and tighten all electrical connections.

•Check fans for balanced operation. Make sure that there are no loose screws / bolts, no fan blades interference and no

damage to the fans and guards.

•Inspect the air ﬁlters, clean or replace as required.

•Clean and repaint any corroded panel section.

•Ensure no blockage of airﬂow through variable speed drive.

Cleaning the Condenser Coils

Clean the coils at least once a year or more frequently if unit is located in a dusty and dirty environment, in order to

maintain your system’s proper operating performance. High discharge pressures are good indication that the coils need

cleaning. When using detergent or solvents to clean the coils, follow the manufacturer’s instructions to avoid potential

damage to the coils and to the unit.

To clean the refrigerant coils, use a soft brush and water spray, such as garden hose or pressure washer with low pressure

nozzle.

WARNING

Do Not Use High Alkaline Detergent!

When using detergent for coil cleaning, ensure that the alkaline level is no higher than 8.5, which can cause corrosion damage

to the coils.

No Water into the Electrical Compartments!

Ensure consideration is given to the possibility of water entering the electrical compartments during cleaning of the

condenser coil.

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Coil Cleaning Procedures

•Disconnect power to the unit.

•Remove the louvered panels from the unit to gain access to the air inlet side of the coils.

•Use a soft brush to remove loose dirt and debris from both sides of the coils.

•Straighten bent coil ﬁ ns with ﬁ n comb.

•Prepare the detergent solutions according to the manufacturer’s instructions.

•Spray solution at a 90o angle to the coils, keeping a minimum nozzle spray angle of 15°, with at least a 1800mm distance

from the coils and 600 psi pressure.

•Spray leaving air side of the coils ﬁ rst then the air inlet side. Allow the solution to stand on the coils for ﬁ ve minutes.

•Rinse both sides of the coils with cool clean water.

•Inspect the coils, if they are still dirty, repeat the cleaning procedure.

•Clean and wipe dry the outer and inner sides of the unit, the refrigerating parts and other components.

•Ensure that the condensate drain lines are not blocked.

•Reinstall all unit panels, covers and guards.

•Restore electrical power to the unit after ensuring all electrical components are dry.

How To Clean Air Filter

The ﬁ lter prevents dust and other particles from entering the indoor unit. Dust build up can reduce the eﬃ ciency of the air

conditioner. For optimum eﬃ ciency, clean the air ﬁ lter regularly or more frequently if unit is installed in a dusty area.

WARNING

1. Ensure the unit is OFF before checking or cleaning the air ﬁ lter.

2.To avoid injury, ensure that the blower fan comes to a complete stop before removing the air ﬁ lter.

3. Air inlet frame may swing down when unlocked. Ensure to guide the air inlet frame to complete open position (do not let it

swing freely).

Step 1. Unlock the grille by pushing the two tabs towards the middle simultaneously.

Push tabs sideways to

release grille

Step 2. Remove the ﬁ lter from the grille.

(Be mindful of the cable from the control box on the main body to the display panel.)

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Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

Step 3. Remove the air ﬁ lter.

Step 4. Clean the air ﬁ lter by vacuuming the surface or washing it with warm and mild detergent.

Step 5. Rinse the ﬁ lter with clean water and allow it to air-dry. DO NOT let the ﬁ lter dry in direct sunlight.

Step 6. Reinstall the ﬁ lter.

Step 7. Ensure the cable from the display panel to the control box is not loose and not obstructing the grill.

Step 8. Lock the grille by sliding the two tabs outwards simulataneously.

Preparation For Periods of Non-Use

If you plan to not use your air conditioner for an extended period of time, do the following:

•Run the appliance on FAN mode for 12 hours in a warm room to dry all its components. Presence of moisture for a long

period of time may lead to mold formation.

•Turn oﬀ the appliance and turn oﬀ power via the main power isolator.

•Clean the air ﬁ lter according to the instructions in the previous section. Reinstall the clean, dry ﬁ lter before storing.

•Remove the batteries from the remote control (if remote control is used).

Maintenance – Pre-Season Inspection

After long periods of non-use, or before periods of frequent use, do the following:

•Use a dry cloth to wipe oﬀ the dust accumulated on the rear air intake grille in order to avoid the dust being dispersed

from the indoor unit.

•Check that the air ﬁ lter is installed.

•Check if the air outlet or inlet is blocked after the air conditioner has not been used for a long time.

•Turn on the main power isolator at least 12 hours prior to operating the unit.

CAUTION

• Any unit repairs, maintenance and cleaning of outdoor unit should be performed by qualiﬁ ed HVAC technician.

• Filter cleaning can and should be regularly performed by product owner as required.

WARNING

• If the refrigerant leaks, turn oﬀ the air conditioner and any combustible heating devices, ventilate the room and call your

HVAC technician immediately. Refrigerant can be toxic. DO NOT use the air conditioner until the leak is repaired.

• When the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration

from exceeding the safety limit in the event of refrigerant leakage. Concentrated refrigerant causes a severe health and

safety threat.

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. Troubleshooting

SAFETY PRECAUTIONS

If ANY of the following conditions occurs, turn oﬀ your unit immediately!

• Any cables are damaged or abnormally warm

• You smell a burning odour

• The unit emits loud or abnormal sounds

• A power fuse blows or the circuit breaker frequently trips

• Water or other objects fall into or out of the unit

DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AUTHORISED SERVICE PROVIDER IMMEDIATELY!

The following problems are not a malfunction and in most situations will not require repairs.

Fault Possible Causes

Unit does not turn on

when pressing ON/OFF

button

The unit has a 3-minute protection feature that prevents the unit from overloading. The unit

cannot be restarted within three minutes of being turned oﬀ.

If the Operation light and PRE-DEF (Pre-heating/ Defrost) indicators are lit up, the outdoor

temperature is too cold and the unit’s hot start feature is activated in order to defrost the unit.

The unit changes from

COOL mode to FAN mode

The unit changes its setting to prevent frost from forming on the unit. Once the temperature

increases, the unit will start operating again.

The set temperature has been reached, at which point the unit turns oﬀ the compressor. The unit

will resume operating when the temperature ﬂuctuates again.

The indoor unit emits

white mist

In humid regions, a large temperature diﬀerence between the room’s air and the conditioned air

can cause white mist.

Both the indoor and

outdoor units emit white

mist

When the unit restarts in HEAT mode after defrosting, white mist may be emitted due to moisture

generated from the defrosting process.

The indoor unit makes

noises

A squeaking sound is heard when the system is OFF or in COOL mode. The noise is also heard

when the drain pump (optional) is in operation.

A squeaking sound may occur after running the unit in HEAT mode due to expansion and

contraction of the unit’s plastic parts.

Both the indoor unit and

outdoor unit make noises

A low hissing sound may occur during operation. This is normal and is caused by refrigerant gas

ﬂowing through both the indoor and outdoor units.

A low hissing sound may be heard when the system starts, has just stopped running or is

defrosting. This noise is normal and is caused by the refrigerant gas stopping or changing

direction.

The outdoor unit makes

noises The unit will make diﬀerent sounds based on its current operating mode.

Dust is emitted from

either the indoor or

outdoor unit

The unit may accumulate dust during extended periods of non-use, which will be emitted when

the unit is turned on. This can be mitigated by covering the unit during long periods of inactivity.

The indoor unit emits a

bad odour

The unit may absorb odors from the environment (such as furniture, cooking, cigarettes, etc.)

which will be emitted during operations.

The unit’s ﬁlters have become moldy and should be cleaned.

The fan of the outdoor

unit does not operate During operation, the fan speed is controlled to optimize product operation.

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Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

When troubles occur, please check the following points before contacting a HVAC service repair company.

Fault Possible Causes Remedies

The unit is not working

Power failure Wait for the power to be restored

The power switch is off Turn on the power

Remote control batteries are dead Replace the remote control batteries

The unit’s 3-minute protection has been

activated Wait three minutes after restarting the unit

Poor Cooling / Heating

Performance

Temperature setting may be higher than

the ambient room temperature for the

cooling mode; or lower than the ambient

temperature for the heating mode

Adjust to temperature setting higher / lower

The heat exchanger on the indoor or

outdoor unit is dirty Clean the affected heat exchanger

The air filter is dirty Remove the filter and clean it according to

instructions

The air inlet or outlet of either unit is

blocked

Turn the unit off, remove the obstruction and

turn it back on

Doors and windows are open Make sure that all doors and windows are

closed while operating the unit

Excessive heat is generated by sunlight

(Cooling only)

Close windows and curtains during periods of

high heat or bright sunshine

The unit starts and stops

frequently

Setpoint is reached Check that the setpoint is not reached

Unit encounters an error Check that the unit does not display any error

NOTE

If your problem persists after performing the checks and diagnostics above, turn oﬀ your unit immediately and contact

ActronAir on 1800 119 229 for technical support or warranty.

. Display / Error Codes

When troubles occur, please check the following points before contacting a qualiﬁed service technician.

Normal Display (not error code)

Display

Codes

Operation

Lamp Timer Lamp Causes

dF - - Defrost

CL - - Filter cleaning reminder (power on display for 15 seconds)

CL - - Active clean

nF - - Filter replacement reminder (power on display for 15 seconds)

FP - - Heating in room temperature under 8°C

FC - - Forced cooling

AP - - AP mode of WIFI connection

CP - - Remote switched off

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. Maintenance

Maintenance Procedures

This section describes the procedures that must be performed as a part of normal maintenance program. Regular This section describes the procedures that must be performed as a part of normal maintenance program. Regular

servicing of equipment by licensed HVAC technician is highly recommended. Always disconnect electrical power to the servicing of equipment by licensed HVAC technician is highly recommended. Always disconnect electrical power to the

unit before performing these procedures. It is always a safe practice to observe all safety warnings and cautions when unit before performing these procedures. It is always a safe practice to observe all safety warnings and cautions when

conducting maintenance tasks. conducting maintenance tasks.

DANGER

Live Electrical Connections !

It may be necessary to work with live electrical components on certain maintenance tasks. Only licensed electricians and

qualiﬁed technicians are allowed to perform these tasks.

WARNING

Hazardous Voltage !

Always make sure that all power supply, including remote controls, are disconnected before performing maintenance.

Observe proper LOCK-OUT / TAG-OUT (LOTO) procedures to ensure that power cannot be inadvertently energised. Failure to

disconnect power before maintenance procedures can result in serious injury and/or death.

Error Codes

Error

Codes

Operation

Lamp Timer Lamp Causes

EH 00/

EH 0A 1 time X Indoor unit EEPROM parameter error

EL 01 2 times X Indoor / outdoor unit communication error

EH 03 4 times X The indoor fan speed is operating outside of the normal range

EH 60 6 times X Indoor room temperature sensor T1 is in open circuit or has short circuited

EH 61 6 times X Evaporator coil temperature sensor T2 is in open circuit or has short circuited

EL 0C 8 times X Refrigerant Leakage Detection

EH 0b 9 times X Communication error between indoor two chips

EH 0E 13 times X Water-level alarm malfunction

EC 53 5 times X Outdoor room temperature sensor T4 is in open circuit or has short circuited

EC 52 5 times X Condenser coil temperature sensor T3 is in open circuit or has short circuited

EC 54 5 times X Compressor discharge temperature sensor TP is in open circuit or has short circuited

EC 56 5 times X Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited

EC 51 5 times O Outdoor unit EEPROM parameter error

EC 07 12 times X The outdoor fan speed is operating outside of the normal range

PC 00 7 times IPM malfunction or IGBT over-strong current protection

PC 01 2 times Over voltage or over low voltage protection

PC 02 3 times Top temperature protection of compressor or High temperature protection of IPM module

PC 04 5 times Inverter compressor drive error

PC 03 7 times High pressure protection or low pressure protection

EC 0d 14 times X Outdoor unit malfunction

EH bA -- -- Communication malfunction between external fan module and indoor unit

EH 3A 4 times X External fan DC bus voltage is too low protection

EH 3b 4 times X External fan DC bus voltage is too high fault

-- 1 time O Indoor units mode conflict (match with multi outdoor unit)

O - ON / X - OFF / - FLASH

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Doc. No. 9590-4016 Ver. 2 220616

Annual Maintenance Checklists

•Perform general maintenance inspections.

•Perform scheduled start-up checks.

•Leak test refrigerant circuits.

•Inspect contacts of all contactors and relays. Replace all worn contacts as required.

•Inspect, clean and tighten all electrical connections.

•Check fans for balanced operation. Make sure that there are no loose screws / bolts, no fan blades interference and no

damage to the fans and guards.

•Inspect the air ﬁlters, clean or replace as required.

•Clean and repaint any corroded panel section.

•Ensure no blockage of airﬂow through variable speed drive and drive fan is operating correctly.

Cleaning the Condenser Coils

Clean the coils at least once a year or more frequently if unit is located in a dusty and dirty environment, in order to

maintain your system’s proper operating performance. High discharge pressures are good indication that the coils need

cleaning. When using detergent or solvents to clean the coils, follow the manufacturer’s instructions to avoid potential

damage to the coils and to the unit.

To clean the refrigerant coils, use a soft brush and water spray, such as garden hose or pressure washer with low pressure To clean the refrigerant coils, use a soft brush and water spray, such as garden hose or pressure washer with low pressure

nozzle. nozzle.

DANGER

Beware of Rotating Fan Blades !

• Always make sure that all power supply, to the Outdoor Fans are turned-oﬀ and isolated.

• Observe WH&S safety procedures, do not wear loose clothing and any jewellery when working near the fans.

• Wear PPE whenever performing any maintenance procedures.

• Observe all necessary procedures when working on a conﬁned space.

CAUTION

Do Not Use High Alkaline Detergent !

When using detergent for coil cleaning, ensure that the alkaline level is no higher than 8.5, which can cause corrosion damage to

the coils.

Coil Cleaning Procedures

•Disconnect power to the unit.

•Remove the louvered panels from the unit to gain access to the air inlet side of the coils.

•Use a soft brush to remove loose dirt and debris from both sides of the coils.

•Straighten bent coil ﬁns with ﬁn comb.

•Prepare the detergent solutions according to the manufacturer’s instructions.

•Spray solution at a 90o angle to the coils, keeping a minimum nozzle spray angle of 15o, with at least a 1800mm distance

from the coils and 600 psi pressure.

•Spray leaving air side of the coils ﬁrst then the air inlet side. Allow the solution to stand on the coils for ﬁve minutes.

•Rinse both sides of the coils with cool clean water.

•Inspect the coils, if they are still dirty, repeat the cleaning procedure.

•Clean and wipe dry the outer and inner sides of the unit, the refrigerating parts and other components.

•Ensure that the condensate drain lines are not blocked.

•Reinstall all unit panels, covers and guards.

•Restore electrical power to the unit.

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. Maintenance Frequency Checklist

Regular servicing of equipment by a qualiﬁed technician is recommended every 12 months for residential applications and

every quarter for commercial applications. Regular servicing of your unit helps in maintaining its optimum performance

and reliability. The following checklist and service periods are provided as a guide only, as some sites may require

more frequent servicing.

Electrical

Parts

Service

Frequency Detail of Service Check Service Methods

Mth

Printed Circuit

Boards Visual Inspection. Tighten Terminals as necessary on printed

circuit boards.

Electrical

Connections Check all electrical terminals,

mains, communications, etc. Re-tighten if loose.

Magnetic

Contactor Check for loose terminal

connections. Tighten electrical terminals. Remove any dust.

Indoor Unit

Parts

Service

Frequency Detail of Service Check Service Methods

Mth

Casing / Panels

and Frames Visual check for damage, rust

and dust accumulation.

For highly corrosive environment, wash panels

quarterly with water and neutral detergent

solution. Wax panels. Repair / re-paint where

required.

Insulation Visual check for insulation

conditions.

Repair / replace insulation

material.

Fan Visual check for run out of

balance and dust attached.

Clean oﬀ dust as necessary to negate possibility

of fan running out of balance.

Motor 

Ω

Visual check on wiring.

Insulation resistance check to

be carried out annually.

Measure insulation resistance to earth with

Megger.

Insulation resistance should be more than 1MΩ.

Heat

Exchanger Check for clogging by dust.

Check for leaks / damage.

Clean air inlet side as necessary. Straighten any

bent ﬁns using ﬁns comb.

Drain Pan/

Condensation

line

Check for obstructions and free

ﬂow of water.

Clean to eliminate obstructions/ sludge and

check condition of pan. Pour water to ensure

free ﬂow.

Filter* Check for clogging by dust. Clean / Replace Filter.

Temperature

Readings Measure air on and air oﬀ.

Place temperature probe in return and supply

air of unit. Be careful not to touch the fan

blower whilst checking temperature with

thermometer.

*Service period for ﬁlter cleaning may vary depending on operating time and surrounding environment

Owner's Manual Four-Way Cassette

Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

Outdoor Unit

Parts

Service

Frequency Detail of Service Check Service Methods

Mth

Casing / Panels

and Frames Visual check for damage, rust

and dust accumulation.

For highly corrosive environment, wash panels

quarterly with water and neutral detergent

solution. Wax panels. Repair / re-paint where

required.

Insulation Visual check for insulation

conditions. Repair / replace insulation material.

Fan Visual check for run out

of balance and dust

accumulation.

Clean oﬀ dust as necessary to negate possibility

of fan running out of balance.

Motor 

Ω

Visual check on wiring.

Insulation resistance check to

be carried out annually.

Measure insulation resistance. Should be more

than 1MΩ.

Heat

Exchanger Check for clogging by dust.

Check for leaks / damage.

Clean air inlet side as necessary. Straighten any

bent ﬁns using ﬁns comb.

Condensate

Drain Line

(if available)

Check for obstructions & free

ﬂow of water.

Clean to eliminate obstructions/ sludge and

check condition of drain line. Pour water to

ensure free ﬂow.

Compressor 

Ω

Check for high / low pressure.

Measure insulation resistance.

Check compressor for

abnormal noise/vibrations.

Measure insulation resistance. Should be more

than 1MΩ. Ensure to isolate ﬁrst the VSD from

the compressor before measuring insulation

resistance.

Compressor

drive



For variable drive compressor

check full operation of drive

from minimum hertz to

maximum, check fan operation

of drive.

Check compressor amperage & running

frequency feedback from outdoor board seven

segment display.

Ensure drive fresh air

path is clear and drive fan is

operating correctly.

Check ventilation holes on top and bottom of

drive cover are clear of leaves, pebbles or dirt.

Refrigeration

Operational

Readings

Make note of operational

reading in test cool/heat mode.

Check operating pressures, record super heat

and sub-cool values.

Safety

Devices Check calibration of

safety devices.

Check resistance of sensors, pressure cut in /

cut out of pressure controls.

Faults Check for any previous fault

history on unit.

Investigate any causes for previous faults, reset

fault history.

Owner's Manual - Cascade Series 2

Doc. No. 9590-4016 Ver. 2 220616

ActronAir is constantly seeking ways to improve the design of its products. Therefore, speciﬁ cations are subject to change without notice.

Refrigerant Trading Authorisation

No.: AU06394

ActronAir Cascade Series 2 User manual

Brand: ActronAir

Model: Cascade Series 2

Category: Split-system air conditioners

Type: User manual

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ActronAir Cascade Series 2 User manual

ActronAir Cascade Series 2 User manual

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